Open Weight
2 milestones in AI history
Open SourceGenerative AI Revolution
Llama 2: Meta Opens the Floodgates
Meta released Llama 2, a family of widely available large language models (7B, 13B, 70B parameters) distributed as open weights under a custom license that allowed broad commercial use. While not open-source in the strict OSI sense, it gave companies and researchers access to a frontier-quality model they could run, customize, and deploy themselves.
Mark ZuckerbergMeta
Open SourceGenerative AI Revolution
Llama 3: Open-Source Catches Up
Meta released Llama 3 (8B and 70B, later 405B), closing the gap with closed frontier models. The 405B release put near-frontier open-weight models into more developers' hands, even though Meta's licensing still sat outside a strict open-source definition.
Meta